Note: Additional categories for Health Information Techology tracking might include whether respondents have not yet responded (unavailable), refuse to answer (declined), or do not know (unknown), as well as whether responses are self-reported or observer-reported.

a The preferred order of questioning is Hispanic ethnicity first, followed by race, as the Office of Management and Budget (OMB) recommends, and then granular ethnicity.b The U.S. Census Bureau received OMB permission to add "Some other race" to the standard OMB categories in Census 2000 and subsequent Census collections.c Additional codes will be needed for categories added to the CDC/HL7 list.d Need is determined on the basis of two questions, with asking about proficiency first. Limited English proficiency is defined for health care purposes as speaking English less than very well.